142401212 has 12 divisors (see below), whose sum is σ = 250273296. Its totient is φ = 70894560.

The previous prime is 142401187. The next prime is 142401229. The reversal of 142401212 is 212104241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75464 + ... + 77327.

It is an arithmetic number, because the mean of its divisors is an integer number (20856108).

Almost surely, 2^142401212 is an apocalyptic number.

It is an amenable number.

142401212 is a deficient number, since it is larger than the sum of its proper divisors (107872084).

142401212 is a wasteful number, since it uses less digits than its factorization.

142401212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153028 (or 153026 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142401212 is about 11933.1978949484. The cubic root of 142401212 is about 522.2012357611.

Adding to 142401212 its reverse (212104241), we get a palindrome (354505453).

The spelling of 142401212 in words is "one hundred forty-two million, four hundred one thousand, two hundred twelve".